Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14905 |
Refining the role of phenology in regulating gross ecosystem productivity across European peatlands | |
Koebsch, Franziska1,2; Sonnentag, Oliver3,4; Jarveoja, Jarvi1; Peltoniemi, Mikko5; Alekseychik, Pavel5,6; Aurela, Mika7; Arslan, Ali Nadir7; Dinsmore, Kerry8; Gianelle, Damiano9; Helfter, Carole8; Jackowicz-Korczynski, Marcin10,11; Korrensalo, Aino12; Leith, Fraser8; Linkosalmi, Maiju7; Lohila, Annalea6,7; Lund, Magnus10; Maddison, Martin13; Mammarella, Ivan5; Mander, Ulo13; Minkkinen, Kari14; Pickard, Amy8; Pullens, Johannes W. M.9,15,16,17; Tuittila, Eeva-Stiina12; Nilsson, Mats B.1; Peichl, Matthias1 | |
2019-12-03 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Sweden; Germany; Canada; Finland; Scotland; Italy; Denmark; Estonia; Ireland |
英文摘要 | The role of plant phenology as a regulator for gross ecosystem productivity (GEP) in peatlands is empirically not well constrained. This is because proxies to track vegetation development with daily coverage at the ecosystem scale have only recently become available and the lack of such data has hampered the disentangling of biotic and abiotic effects. This study aimed at unraveling the mechanisms that regulate the seasonal variation in GEP across a network of eight European peatlands. Therefore, we described phenology with canopy greenness derived from digital repeat photography and disentangled the effects of radiation, temperature and phenology on GEP with commonality analysis and structural equation modeling. The resulting relational network could not only delineate direct effects but also accounted for possible effect combinations such as interdependencies (mediation) and interactions (moderation). We found that peatland GEP was controlled by the same mechanisms across all sites: phenology constituted a key predictor for the seasonal variation in GEP and further acted as a distinct mediator for temperature and radiation effects on GEP. In particular, the effect of air temperature on GEP was fully mediated through phenology, implying that direct temperature effects representing the thermoregulation of photosynthesis were negligible. The tight coupling between temperature, phenology and GEP applied especially to high latitude and high altitude peatlands and during phenological transition phases. Our study highlights the importance of phenological effects when evaluating the future response of peatland GEP to climate change. Climate change will affect peatland GEP especially through changing temperature patterns during plant phenologically sensitive phases in high latitude and high altitude regions. |
英文关键词 | canopy greenness commonality analysis mediation moderation peatland C cycle photosynthesis structural equation modeling |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500713000001 |
WOS关键词 | DIGITAL REPEAT PHOTOGRAPHY ; CARBON-DIOXIDE EXCHANGE ; CO2 EXCHANGE ; NORTHERN PEATLAND ; GROWING-SEASON ; TEMPERATURE ; RESPIRATION ; AREA ; PHOTOSYNTHESIS ; VARIABILITY |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225313 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umea, Sweden; 2.Univ Rostock, Dept Landscape Ecol & Site Evaluat, Rostock, Germany; 3.Univ Montreal, Dept Geog, Montreal, PQ, Canada; 4.Univ Montreal, Ctr Etud Nord, Montreal, PQ, Canada; 5.Nat Resources Inst Finland Luke, Helsinki, Finland; 6.Univ Helsinki, Inst Atmospher & Earth Syst Res INAR, Helsinki, Finland; 7.Finnish Meteorol Inst, Helsinki, Finland; 8.Ctr Ecol & Hydrol, Edinburgh, Midlothian, Scotland; 9.Fdn Edmund Mach, Dept Sustainable Agroecosyst & Bioresources, Res & Innovat Ctr, San Michele All Adige, Italy; 10.Aarhus Univ, Dept Biosci, Roskilde, Denmark; 11.Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden; 12.Univ Eastern Finland, Sch Forest Sci, Joensuu, Finland; 13.Univ Tartu, Dept Geog, Tartu, Estonia; 14.Univ Helsinki, Dept Forest Sci, Helsinki, Finland; 15.Univ Coll Cork, Dept Civil & Environm Engn, Hydromet, Cork, Ireland; 16.Univ Coll Cork, Environm Res Inst, Cork, Ireland; 17.Aarhus Univ, Dept Agroecol, Tjele, Denmark |
推荐引用方式 GB/T 7714 | Koebsch, Franziska,Sonnentag, Oliver,Jarveoja, Jarvi,et al. Refining the role of phenology in regulating gross ecosystem productivity across European peatlands[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Koebsch, Franziska.,Sonnentag, Oliver.,Jarveoja, Jarvi.,Peltoniemi, Mikko.,Alekseychik, Pavel.,...&Peichl, Matthias.(2019).Refining the role of phenology in regulating gross ecosystem productivity across European peatlands.GLOBAL CHANGE BIOLOGY. |
MLA | Koebsch, Franziska,et al."Refining the role of phenology in regulating gross ecosystem productivity across European peatlands".GLOBAL CHANGE BIOLOGY (2019). |
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